Contents

Preface

Foreword

1Light and Photometry

The Nature of Light

Light Waves

The Electromagnetic Spectrum

The Visible Spectrum

Spectral Power Distributions

Solid-Object Sources and the Heat-Light Relationship

Vapor Sources and the Effect of Electrical Discharge

Luminescence/Fluorescence/ Phosphorescence

The Use of Color Temperature

The Mired Scale

Color-Rendering Index

The Polarization of Light

Practical Sources of Light and their Properties

Lasers

The Language of Light

The Measurement of Intensity

The Measurement of Flux

The Measurement of Illuminance

The Measurement of Luminance

 

2 Camera and Printing Exposure

Camera Exposure Versus Photographic Exposure

F-Numbers

Whole Stops

Maximum Diaphragm Openings

Intermediate F-Numbers

Limitations of the F-Number System

Lens Transmittance

Exposure Time

Lens Shutters

Effective Exposure Time

Focal-Plane Shutters

Electronic Shutters

Shutter Testing

Camera Exposure Latitude

Alternatives to Exposure Meters

Exposure Meters

Reflected-Light/ Incident-Light Exposure Meters

Meter Scales

Light Ratios

Meter Accuracy and Testing

Methods of Using Refl ected-Light Exposure Meters

Incident-Light Readings

Effective Film Speed and Degree of Development

Flash Guide Numbers

Flash Meters

Color-Temperature Meters

 

3 Strictly Digital

Digital Camera

Digital Image Processing

Digital Printing

 

4 Photographic Optics

Image Formation with a Pinhole

Image Formation with a Lens

Graphical D rawings

Depth of Field

Permissible Circle of Confusion

Depth-of-Field Controls

Depth of Field and F-Number

Depth of Field and Object Distance

Depth of Field and Focal Length

Depth of Focus

View-Camera Movements

Perpendicular Movements

Back Movements and Image Shape

Back Movements and Image Sharpness

Lens Movements and Image Sharpness

Lens Types

Reversed Telephoto Wide-Angle Lenses

Supplementary Lenses

Soft-Focus Lenses

Lens Shortcomings

Diffraction

Lens Testing

Testing Flare

 

5 Sensitometry

Introduction

Exposure

Digital Camera Sensitometry

Film Sensitometry

Transmittance, Density, Opacity

Density Measurement

Characteristic Curves

Exposure—Characteristic Curve Relationships

Log Exposure Range

Exposure Latitude

Effects of Development Time

Gamma

Average Gradient

Contrast Index

ISO Film Speed

Analysis of Negative Curves

Paper Sensitometry

Analysis of Photographic Paper Curves

Paper Contrast

Condenser and Diffusion Enlargers

The Effects of Enlarger Flare and Scattered Light

Testing Enlargers for Flare Light

Paper Speeds

Analysis of Positive Film Curves

Analysis of Reversal Film Curves

Introduction to Photographic Effects

 

6 Tone Reproduction

Purposes of Tone Reproduction

Objective and Subjective Tone Reproduction

Objective Tone Reproduction/ Preferred Photographs

Objective Tone Reproduction Analysis

Optical Flare

The Making of the Negative

The Making of the Positive

Generation of the Tone-Reproduction Curve

Tone Reproduction and the Zone System

 

7 Micro-Image Evaluation

Image Characteristics

Graininess/Granularity

Measuring Graininess

Grain Size and Image Color

Granularity

Minimizing Graininess

Graininess of Color Films

Sharpness/Acutance

Acutance

Resolving Power

Resolving-Power Variables

Resolving-Power Categories

Resolving Power And Graininess

Resolving Power And Acutance

Modulation Transfer Function (MTF)

Photographic Definition

Pixels

Digital Resolution

T-Grain Emulsions

 

8 Filters

How Do Filters Work?

Color Filters

Ultraviolet and Infrared Filters

Filters for Color Photography

Spectrophotometric Absorption Curves

Neutral-Density Filters

Graduated Neutral Density Filters

Interference Filters

Polarizing Filters

 

9 Color

Introduction

Spectrophotometers

Spectrophotometric Curves

Color Densitometers

Color Densities

Physical, Psychophysical, and Psychological Measurements

Color Chain

Color Mode

Primary Colors

Color Attributes

Neutrals

Color-Vision Theory

Color Specification Systems

Munsell System of Color Specification

Pantone® System of Color Specification

CIE System of Color Specification

CIE Chromaticity Map

 

10 Color Management

What Is CM?

What Is Color Management?

Using an ICC profi le

 

11 Color Reproduction

Objectives of Color Reproduction

Additive and Subtractive Color Formation

The Recording of Color (Analysis Stage)

The Production of Color (Synthesis Stage)

Spectral Sensi tivity

Dye Characteristics

Color Densities

Sensitometry of Color Photographic Materials

Reversal Color Films

Negative Color Films

Photographic Color Paper

 

12 Visual Perception

Post-Stimulus Perception

Perception of Stimulus Attributes

Perspective

Linear Perspective

Object Distance and Image Size

Focal Length and Image Size

Changing Object Distance and Focal Length

Viewing Distance

The Wide-Angle Effect

 

13 Chemistry for Photographers

Edited by Paul A. Schwartz

Introduction

Image Capture

Image Display

Basic Chemistry

Chemical Reactions

Oxidation/Reduction

Acid/Base

Ionization

pH

Complexes

Solutions

Specific Gravity

 

14 Photographic Emulsions, Films, and Papers

Photographic Emulsions

Safety Base Films

Polyester Film Bases

Film Structure

Paper Bases

Brighteners

Paper Weight and Thickness

The Gelatin Colloid

Properties of Gelatin

Chemical Nature of Gelatin

Physical Properties of Gelatin

Emulsion Making

Emulsion Characteristics

Grain Size, Sensitivity, and Contrast

Grain Composition

Spectral Sensitivity

Crystal Structure

Emulsion Precipitation

Effects of Development on Developers

Dye Sensitization

Formation of the Latent Image

Photographic Effects

Latent Image Stability

Some Alternative Systems

Calotype Process

Daguerreotype

Cyanotype

Wet Collodion

Gum Bichromate

Electrophotography

Thermography

Diazo

Electronic Image Display

Charge-Coupled Devices

Dye Transfer

Diffusion Transfer

 

15 Black-and-White Photographic Development

Negative Development

Direct-Positive Images

Reversal Processing

Mechanism of Development

Constitution of Typical Developers

Developing Agents

Hydroquinone

Metol

MQ Developers

Accelerators

Preservatives

Restrainers

Anti-Foggants

Other Development Accelerators

Concentration of Developer

Development Time

Developer Temperature

Developer Agitation

Replenishment

Paper Processing

Analysis of Developers

Specific Black-and-White Processes

Practical Applications

 

16 Archiving Photographic Images

Introduction

Digital Images

Silver Image Archiving

Preparation for Drying

Drying Films

Drying Prints

Preservation of Photographs

 

17 Variability and Quality Control in Photography

Introduction to the Concept of Variability

Sources of Variation

Patterns of Variation

The Normal Distribution

Populations vs. Samples

Description of the Normal Distribution

Measurement Methods and Subjective Evaluations

Ordinal Scale

Paired Comparisons

Test Conditions

Quality Control

 

Appendixes

A: Conversion Units and Scales

B: Exposures, Depth of Field, Zone System, and Film Speed Information

C: Calculations and Basic Logarithms

Answers to Review Questions

Bibliography

Index

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